Castaic, California 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 87°F 31°C Heat Index: 85°F	Observed at: Castaic, CA	Elevation: 900 ft | 274 m
	Last Updated: July 29, 5:30 PM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 87°F | 31°C
	Pressure: 28.28 in | 957.8 mb	Dewpoint: 55°F | 13°C
	Humidity: 33%	Wind: WSW 14 mph | WSW 23 kph
	Feels Like: 83°F | 28°C	Visibility: 112.9 mi | 181.8 km
	Lat/Long: 34.4919 | -118.6337	Sunrise: 6:03 AM   Sunset: 7:58 PM

7 Day Graphical Forecast

Valid: 5:41 PM 7/29/2026

Today Clear 91 |63 °F 33 |17 °C 0% Chance Precipitation Thursday Clear 95 |62 °F 35 |17 °C 0% Chance Precipitation Friday Overcast 104 |65 °F 40 |18 °C 0% Chance Precipitation Saturday Clear 107 |74 °F 42 |23 °C 0% Chance Precipitation Sunday Clear 103 |73 °F 40 |23 °C 0% Chance Precipitation Monday Clear 103 |72 °F 39 |22 °C 0% Chance Precipitation Tuesday Clear 102 |70 °F 39 |21 °C 0% Chance Precipitation

7 Hour Graphical Forecast

Valid: 5:41 PM 7/29/2026

5 PM Clear 89 °F 0% Chance Precipitation

6 PM Clear 86 °F 0% Chance Precipitation

7 PM Clear 82 °F 0% Chance Precipitation

8 PM Clear 78 °F 0% Chance Precipitation

9 PM Clear 75 °F 0% Chance Precipitation

10 PM Clear 72 °F 0% Chance Precipitation

11 PM Clear 71 °F 0% Chance Precipitation

7 Day Textual Forecast - with QPF, Max Wind, Humidity, Snowfall & UV Index

7 Day & Night Weather Forecast for Castaic, CA - (Fahrenheit & Celsius) Valid: 5:41 PM 7/29/2026 Today Clear with a high near 91°F [33°C]. WSW wind to around 16 mph [25 kph], with gusts to near 18 mph [29 kph]. Dewpoint near 55°F [13°C] with humidity of 81%. Pressure around 28.28 in [957.8 mb]. UV Index: 8.4. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Tonight Clear with a low around 63°F [17°C]. WSW wind to around 16 mph [25 kph], with gusts to near 18 mph [29 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Thursday Clear with a high near 95°F [35°C]. WSW wind to around 15 mph [24 kph], with gusts to near 17 mph [28 kph]. Dewpoint near 55°F [13°C] with humidity of 77%. Pressure around 28.28 in [957.8 mb]. UV Index: 8.45. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Thursday Night Clear with a low around 62°F [17°C]. WSW wind to around 15 mph [24 kph], with gusts to near 17 mph [28 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Friday Overcast with a high near 104°F [40°C]. SW wind to around 15 mph [23 kph], with gusts to near 9 mph [14 kph]. Dewpoint near 55°F [13°C] with humidity of 62%. Pressure around 28.28 in [957.8 mb]. UV Index: 8.35. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Friday Night Overcast with a low around 65°F [18°C]. SW wind to around 15 mph [23 kph], with gusts to near 9 mph [14 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Saturday Clear with a high near 107°F [42°C]. SW wind to around 16 mph [25 kph], with gusts to near 11 mph [18 kph]. Dewpoint near 55°F [13°C] with humidity of 28%. Pressure around 28.28 in [957.8 mb]. UV Index: 8.35. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Saturday Night Clear with a low around 74°F [23°C]. SW wind to around 16 mph [25 kph], with gusts to near 11 mph [18 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Sunday Clear with a high near 103°F [40°C]. SSW wind to around 16 mph [26 kph], with gusts to near 13 mph [20 kph]. Dewpoint near 55°F [13°C] with humidity of 38%. Pressure around 28.28 in [957.8 mb]. UV Index: 8.4. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Sunday Night Clear with a low around 73°F [23°C]. SSW wind to around 16 mph [26 kph], with gusts to near 13 mph [20 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Monday Clear with a high near 103°F [39°C]. SW wind to around 15 mph [24 kph], with gusts to near 12 mph [19 kph]. Dewpoint near 55°F [13°C] with humidity of 42%. Pressure around 28.28 in [957.8 mb]. UV Index: 8.3. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Monday Night Clear with a low around 72°F [22°C]. SW wind to around 15 mph [24 kph], with gusts to near 12 mph [19 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Tuesday Clear with a high near 102°F [39°C]. SW wind to around 16 mph [26 kph], with gusts to near 11 mph [17 kph]. Dewpoint near 55°F [13°C] with humidity of 51%. Pressure around 28.28 in [957.8 mb]. UV Index: 8.3. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Tuesday Night Clear with a low around 70°F [21°C]. SW wind to around 16 mph [26 kph], with gusts to near 11 mph [17 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Castaic, CA

Today: 0.0 mm | 0.00 in

Tonight: 0.0 mm | 0.00 in

Thursday: 0.0 mm | 0.00 in

Thursday Night: 0.0 mm | 0.00 in

Friday: 0.0 mm | 0.00 in

Friday Night: 0.0 mm | 0.00 in

Saturday: 0.0 mm | 0.00 in

Saturday Night: 0.0 mm | 0.00 in

Sunday: 0.0 mm | 0.00 in

Sunday Night: 0.0 mm | 0.00 in

Monday: 0.0 mm | 0.00 in

Monday Night: 0.0 mm | 0.00 in

Tuesday: 0.0 mm | 0.00 in

Tuesday Night: 0.0 mm | 0.00 in

7 Day and Night - Maximum Wind Speed Forecast for Castaic, CA

Today: WSW @ 25 kph | 16 mph

Tonight: WSW @ 25 kph | 16 mph

Thursday: WSW @ 24 kph | 15 mph

Thursday Night: WSW @ 24 kph | 15 mph

Friday: SW @ 23 kph | 15 mph

Friday Night: SW @ 23 kph | 15 mph

Saturday: SW @ 25 kph | 16 mph

Saturday Night: SW @ 25 kph | 16 mph

Sunday: SSW @ 26 kph | 16 mph

Sunday Night: SSW @ 26 kph | 16 mph

Monday: SW @ 24 kph | 15 mph

Monday Night: SW @ 24 kph | 15 mph

Tuesday: SW @ 26 kph | 16 mph

Tuesday Night: SW @ 26 kph | 16 mph

7 Day and Night - Maximum Humidity Forecast for Castaic, CA

Today: 81 %

Tonight: 81 %

Thursday: 77 %

Thursday Night: 77 %

Friday: 62 %

Friday Night: 62 %

Saturday: 28 %

Saturday Night: 28 %

Sunday: 38 %

Sunday Night: 38 %

Monday: 42 %

Monday Night: 42 %

Tuesday: 51 %

Tuesday Night: 51 %

7 Day and Night - Snowfall Totals Forecast for Castaic, CA

Today: 0.0 cm | 0.00 in

Tonight: 0.0 cm | 0.00 in

Thursday: 0.0 cm | 0.00 in

Thursday Night: 0.0 cm | 0.00 in

Friday: 0.0 cm | 0.00 in

Friday Night: 0.0 cm | 0.00 in

Saturday: 0.0 cm | 0.00 in

Saturday Night: 0.0 cm | 0.00 in

Sunday: 0.0 cm | 0.00 in

Sunday Night: 0.0 cm | 0.00 in

Monday: 0.0 cm | 0.00 in

Monday Night: 0.0 cm | 0.00 in

Tuesday: 0.0 cm | 0.00 in

Tuesday Night: 0.0 cm | 0.00 in

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